短語詞組短語undulate fold 波狀褶皺undulate quantity 脈動值undulate embelia 平葉酸藤子undulate shape 起伏形態(tài)to undulate 蕩漾undulate equation 波動方程Paphia undulate 波紋巴非蛤Undulate e 波動undulate forming 起伏成形 返回 undulate